Deformable Elastomeric Pump Ring for Leak Tightness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pump devices face challenges with leak tightness and pressure build-up, leading to internal and external leaks during fluid transportation.
Innovation Solution
A pump device with a hydraulics housing, a deformable pump ring, and an eccentric driven by a controllable shaft, featuring elastomeric materials and sealing lips to enhance leak tightness and pressure build-up, includes projections and sealing lips to prevent fluid backflow and ensure secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pump devices are used, then fluid transport is achieved, but leak tightness is insufficient leading to internal and external leaks
Solution Approach 1:
The patent employs a deformable pump ring made of elastomeric material that acts as a flexible sealing element. This pump ring can be elastically deformed to create tight seals against the pump housing and delivery path, preventing both internal and external fluid leaks while maintaining reliable fluid transport function
Solution Approach 2:
The patent utilizes the elastic properties of the pump ring material and its ability to undergo deformation under varying pressure conditions. By selecting elastomeric materials with appropriate Shore hardness (55-70 Shore), the system achieves optimal balance between seal tightness and deformability to adapt to pressure changes during operation
2Stress or pressure
If conventional pump devices are used, then fluid transport is achieved, but pressure build-up is slow
Solution Approach 1:
The deformable pump ring made of elastomeric material enables rapid pressure build-up by creating effective seals that prevent fluid bypass. The flexibility of the pump ring allows it to conform to the pump housing geometry, ensuring tight sealing that accelerates pressure development in the delivery path
Solution Approach 2:
By utilizing the elastic deformation characteristics of the pump ring material under compression from the eccentric mechanism, the system achieves rapid volume displacement and pressure build-up. The elastomeric material's ability to store and release elastic energy during deformation cycles enhances the rate of pressure development
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design achieves high leak tightness and rapid pressure build-up, reducing the risk of internal and external leaks, and ensuring efficient fluid transport.
Implementation Method 1
The pump ring can be formed of an elastomeric material, which guarantees a lasting deformability
Implementation Method 2
an eccentric is arranged on the pump housing so as to be rotatable relative to the pump housing
Data Source
AI summary
The invention relates to a pump device for pumping a liquid, comprising a hydraulics housing (12, 212), in which a pump ring (14, 214), a pump ring support (16, 216) and an eccentric (18), which can be driven by a shaft (20), are accommodated. The hydraulics housing (12, 212) has an annular portion (22, 222) and a first and a second lateral section (24, 26, 224), the two lateral sections (24, 26,224) being arranged opposite each other. The pump ring (14, 214) is mounted between the two lateral sections (24, 26, 224) of the hydraulics housing (12, 212) at least in some portions. On a side facing away from the pump ring support (16, 216), two first projections (28, 228), which run in the axial direction of the shaft (20), are each in contact with one of the two lateral sections (24, 26, 224).